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Counter rotating double disc chunker
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Patent number 4,630,658
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Issue date Dec 23, 1986
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The United States of America as represented by the Secretary of Agriculture
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Rodger A. Arola
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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Drag bit excavation
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Patent number 4,087,131
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Issue date May 2, 1978
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Rapidex, Inc.
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Carl R. Peterson
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E21 - EARTH DRILLING MINING
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Cable cutter
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Patent number 4,043,238
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Issue date Aug 23, 1977
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Sanders Associates, Inc.
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Ernest E. van Ham
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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3478392
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Patent number 3,478,392
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Issue date Nov 18, 1969
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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3282143
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Patent number 3,282,143
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Issue date Nov 1, 1966
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3030841
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Patent number 3,030,841
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Issue date Apr 24, 1962
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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2594995
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Patent number 2,594,995
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Issue date Apr 29, 1952
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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2414922
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Patent number 2,414,922
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Issue date Jan 28, 1947
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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1423790
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Patent number 1,423,790
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Issue date Jul 25, 1922
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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1041595
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Patent number 1,041,595
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Issue date Oct 15, 1912
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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937208
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Patent number 937,208
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Issue date Oct 19, 1909
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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877670
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Patent number 877,670
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Issue date Jan 28, 1908
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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419357
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Patent number 419,357
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Issue date Jan 14, 1890
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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364643
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Patent number 364,643
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Issue date Jun 14, 1887
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C14 - SKINS HIDES PELTS LEATHER
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346929
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Patent number 346,929
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Issue date Aug 10, 1886
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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299952
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Patent number 299,952
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Issue date Jun 10, 1884
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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296781
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Patent number 296,781
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Issue date Apr 15, 1884
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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99065
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Patent number 99,065
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Issue date Jan 25, 1870
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B28 - WORKING CEMENT, CLAY, OR STONE
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28068
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Patent number 28,068
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Issue date May 1, 1860
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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11854
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Patent number 11,854
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Issue date Oct 31, 1854
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...